Table 1 An overview of the cases analyzed in the present study.

From: Bone microstructural characteristics or positional changes of condyle head affect short-term condyle head resorption after orthognathic surgery

 

Group AN

Group AW

Group NN

Group NW

P-value

(n = 10)

(n = 13)

(n = 8)

(n = 3)

Age

Average ± SD

32.80 ± 5.11

28.00 ± 6.06

30.62 ± 6.82

31.00 ± 8.54

0.162

Mean (min, max)

33 (26, 39)

26 (21, 39)

32 (21,39)

32 (22,39)

TMJ symptoms

Before surgery

0

0

0

0

0.9022

6 months after surgery

2 (discomfort, pain when opening mouth)

2 (discomfort)

1 (discomfort)

1 (discomfort)

Operative time (min)

Average ± SD

233.55 ± 42.49

218.56 ± 9.59

218.71 ± 22.09

187.66 ± 39.24

0.544

Mean (min, max)

215.5 (185, 290)

215 (140, 305)

220.5 (188, 251)

199 (144, 220)

Blood loss (ml)

Available data

211.66 ± 103.56

211.25 ± 88.65

243.57 ± 145.70

101.66 ± 52.99

0.305

Mean (min, max)

190 (90, 450)

182 (90, 380)

185 (45, 450)

110 (45, 150)

SNA angle

Preoperation

Average ± SD

81.60 ± 3.70

83.41 ± 4.88

81.71 ± 3.03

81.66 ± 4.72

0.564

Mean (min, max)

81 (78, 89)

80 (78, 91)

80 (78, 85)

80 (78, 87)

Post operation

Average ± SD

82.00 ± 3.96

83.75 ± 3.86

81.00 ± 2.38

81.66 ± 3.21

0.404

Mean (min, max)

83 (77, 86)

83 (79, 91)

81 (78, 85)

83 (78, 84)

Amount of movement

Average ± SD

0.31 ± 2.00

0.33 ± 2.70

0.28 ± 2.62

0 ± 3.00

0.997

Mean (min, max)

0 (− 3, 3)

0 (− 4, 4)

0 (− 4, 4)

0 (− 3, 3)

SNB angle

Preoperation

Average ± SD

73.32 ± 3.23

75.25 ± 4.33

73.57 ± 2.81

73.00 ± 4.35

0.538

Mean (min, max)

73 (70, 80)

74 (70, 80)

73 (71, 70)

71 (70, 78)

Post operation

Average ± SD

75.03 ± 2.50

77.50 ± 4.05

74.85 ± 2.19

76.00 ± 2.64

0.308

Mean (min, max)

75 (72, 82)

76 (72, 84)

74 (72, 79)

75 (74, 79)

Amount of movement

Average ± SD

2.00 ± 0.07

2.25 ± 1.91

1.28 ± 1.38

3.00 ± 2.00

0.395

Mean (min, max)

2 (1, 3)

2 (−1, 5)

2 (−1, 3)

3 (1, 5)

  1. SNA angle: Sella–Nasion–A point (the most concave point of the anterior maxilla) angle, SAB angle: Sella–Nasion–B point (the most concave point on mandibular symphysis) angle.
  2. TMJ temporomandibular joint.